Dowel connection.



I Patented Oct. 29, MIL

J. P. ASHBY & S. H MILLER.

DOWEL CONNECTION.

Jamzwvz Nrrno STATES PATENT OFFICE.

JOHN P. ASHBY AND SAMUEL H. MILLER, OF OKLAHOMA, OKLAHOMA TERRITORY.

DOWEL CONNECTION.

SPECIFICATION formingpart of Letters Patent No. 685,555, dated October29, 1901.

Application filed. my 2's, 1901.

To all whom it may concern;

I Be it known that we, JOHN P. ASHBY and SAMUEL H. MILLER, citizens ofthe United States, residing at Oklahoma city, in the county of Oklahomaand Territory of Oklahoma, have invented a new and useful DowelConnection, of which the following is aspecification.

This invention relates to means for connecting blocks or sections ofwood, metal, stone, &c., and has for its object to provide an improveddowel connection which can be readily applied to draw the sectionssnugly together in a strong and durable manner. It is furthermoredesigned to arrange for convenient access to the dowel-pins after theyhave been placed in the blocks or sections in order that said pins maybe conveniently spread, so as to cooperate with the opposite sectionsand form a rigid connection therebetween, the entire connection beingcontained within the blocks or sections, and thereby housed andprotected against damageand displacement.

With these and other objects in view. the present invention consists inthe combination and arrangement of parts, as will be hereininafter morefully described, shown in the accompanying drawings, and particularlypointed out in the appended claims, it being understood that changes inthe form, proportion, size, and minor details may be made within thescope of the claims without departing from the spirit or sacrificing anyof the advantages of the invention.

In the drawings, Figure l is a sectional view taken through oppositemembers which are connected by means of the present invention. Fig. 2 isa sectional view taken on the line 2 2 of Fig. 1. Fig. 3 is a sectionalview taken in the plane which lies between the connected members. Fig. 4is a detail sectional perspective view of one of the socketed members.Fig. 5 is a detail perspective view of one of the dowel-pins.

Like characters of reference designate corresponding parts in all thefigures of the drawlngs.

Referring to the drawings, 1 and 2 designate the opposite members whichare .to be connected by means of the present invention,

Serial No. 69,418. (No model.)

necting these members there is provided a.

pair of duplicate dowel-pins 4, each of which consists of a straightshank having one longitudinal edge 5 beveled or inclined transverselyand provided at opposite ends with laterally-enlarged heads 6, that areprojected upon that side of the pin which is opposite the beveled edgethereof, the inner ends of said heads being beveled inwardly in opposite directions, as indicated at 7.

In assembling the parts a pair of dowelpins are thrust endwise throughthe open end of one of the sockets, said open end being slightly greaterthan the combined length of the corresponding heads of the pins, afterwhich'the other section or member is placed in contact with thefirst-mentioned member, so as to receive the projected ends of the pins.tween the members and the dowel-pins, one of the members having itsinner face provided with a groove or seat 9 for the reception of thewedge, which is in frictional engagement with the dowel-pins, so as toforcibly separate the latter, and thereby force the beveled headsthereof into engagement with the respective beveled walls 10 of thesockets, thereby drawing together the members in a strong and durablemanner. It is designed to drive the wedge inwardly beyond the outer faceof the members, so as to obviate any projections, and the outer end ofthe groove or seat is filled with molten metal or other suitable filling11, thereby to prevent accidental endwise displacement of the wedge, aswell as to fill the end of the groove or seat.

From the foregoing description it is apparent that the present inventionmay be conveniently applied-without requiring skilled labor, and whenthe sectional members have been connectedthe dowel-pins and wedge arecontained within the members, and thereby housed and protected againstdamage, displacement, and the efiects of the weather.

A wedge 8 is then driven inwardly be- Moreover, the members or sectionsare entirely free from external projections, so that when connected aplurality of such members may lie flat against each other.

While the present invention is particularly designed for settingmonuments together, it will of course be understood that it may beemployed for connecting members or sections of any character and istherefore not limited for use in connection with stone.

What we claim is 1. The combination with opposite members havingcorresponding registered undercut sockets formed in the contiguous facesthereof, of opposite dowel-pins having their opposite ends provided withlaterallyenlarged heads fitted in the respective sockets, and a wedgedriven inwardly between the opposite members and also between and infrictional engagement with the inner edges of the dowelpins, whereby thelatter are separated and forced into engagement with the walls of thesockets.

2. The combination with opposite members having corresponding registeredundercut sockets formed in the contiguous faces thereof, of oppositedowel-pins having their opposite ends provided with laterally-enlargedheads fitted in the respective sockets, the inner face of one of themembers having a transverse groove or seat lying between the pins, and awedge received within said seat and driven into frictional engagementwith the inner edges of the dowel-pins, whereby the latter are separatedand forced into engagement with the walls of the sockets.

3. The combination with opposite members ceases pins being beveledtransversely, and a Wedge driven in between the members and in frictional engagement with the beveled edges of the dowel-pins, whereby thelatter are separated and forced into engagement with the walls of thesockets.

4. The combination with opposite members having their contiguous facesprovided with corresponding registered sockets provided with beveledundercut walls, of a pair of dowel-pins lying in the sockets and overlapping the joint between the members, the opposite ends of the pins beingprovided with outwardly-directed enlarged heads having their inner endsbeveled to correspond with the beveled undercut edges of the sockets,and a wedge driven inwardly between the members and in frictionalengagement with the inner edges of the dowel-pins, whereby the latterare spread and the beveled heads are forced into frictional engagementwith the beveled undercut walls of the sockets.

In testimony that we claim the foregoing as our own we have heretoafiixed our signatures in the presence of two witnesses.

JOHN P. ASHBY. SAMUEL II. MILLER. WVitnesses:

A. L. WELsH, .T. M. OWEN.

